Climate at a Glance

Divisional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, August 2018

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 2018
1-Month
76.5°F
(24.7°C)
76.0°F
(24.4°C)
0.5°F
(0.3°C)
79th Coolest Coolest since: 2017 1915
50th Warmest Warmest since: 2016 1936
Ties: 1923, 2022
Jul–Aug 2018
2-Month
77.4°F
(25.2°C)
77.0°F
(25.0°C)
0.4°F
(0.2°C)
82nd Coolest Coolest since: 2017 1967
47th Warmest Warmest since: 2016 1936
Ties: 1919, 1923, 1933, 1998
Jun–Aug 2018
3-Month
77.6°F
(25.3°C)
75.9°F
(24.4°C)
1.7°F
(0.9°C)
103rd Coolest Coolest since: 2017 1915, 1927
26th Warmest Warmest since: 2016 1936
Ties: 1987
May–Aug 2018
4-Month
76.5°F
(24.7°C)
73.2°F
(22.9°C)
3.3°F
(1.8°C)
125th Coolest Coolest since: 2017 1967
4th Warmest Warmest since: 2012 1936
Ties: 2010
Apr–Aug 2018
5-Month
71.1°F
(21.7°C)
69.6°F
(20.9°C)
1.5°F
(0.8°C)
104th Coolest Coolest since: 2017 1907
25th Warmest Warmest since: 2016 2010
Ties: 1921, 1953, 1986, 1998, 2005
Mar–Aug 2018
6-Month
66.6°F
(19.2°C)
65.5°F
(18.6°C)
1.1°F
(0.6°C)
99th Coolest Coolest since: 2015 1904
30th Warmest Warmest since: 2017 2012
Ties: 1959, 1964
Feb–Aug 2018
7-Month
62.6°F
(17.0°C)
61.1°F
(16.2°C)
1.5°F
(0.8°C)
105th Coolest Coolest since: 2015 1904
24th Warmest Warmest since: 2017 2012
Ties: 1932, 1936, 1999
Jan–Aug 2018
8-Month
58.3°F
(14.6°C)
57.3°F
(14.1°C)
1.0°F
(0.5°C)
94th Coolest Coolest since: 2015 1912
35th Warmest Warmest since: 2017 2012
Ties: 1919, 1939, 1941, 2001
Dec 2017–Aug 2018
9-Month
55.7°F
(13.2°C)
54.8°F
(12.7°C)
0.9°F
(0.5°C)
87th Coolest Coolest since: 2015 1904
41st Warmest Warmest since: 2017 2012
Ties: 1986, 2011
Nov 2017–Aug 2018
10-Month
54.8°F
(12.7°C)
53.8°F
(12.1°C)
1.0°F
(0.6°C)
94th Coolest Coolest since: 2015 1904
34th Warmest Warmest since: 2017 2012
Ties: 1939, 1946, 1949, 1952, 1988
Oct 2017–Aug 2018
11-Month
55.3°F
(12.9°C)
54.1°F
(12.3°C)
1.2°F
(0.6°C)
100th Coolest Coolest since: 2015 1904
28th Warmest Warmest since: 2017 2012
Ties: 1938, 1986, 2011
Sep 2017–Aug 2018
12-Month
56.6°F
(13.7°C)
55.3°F
(12.9°C)
1.3°F
(0.8°C)
103rd Coolest Coolest since: 2015 1904
25th Warmest Warmest since: 2017 2012
Ties: 1922, 1972
Mar 2017–Aug 2018
18-Month
60.1°F
(15.6°C)
58.7°F
(14.8°C)
1.4°F
(0.8°C)
107th Coolest Coolest since: 2015 1904
21st Warmest Warmest since: 2017 2012
Ties: 1991, 2008
Sep 2016–Aug 2018
24-Month
57.7°F
(14.3°C)
55.4°F
(13.0°C)
2.3°F
(1.3°C)
124th Coolest Coolest since: 2016 1979
3rd Warmest Warmest since: 2017 2017
Ties: 2000
Sep 2015–Aug 2018
36-Month
58.1°F
(14.5°C)
55.4°F
(13.0°C)
2.7°F
(1.5°C)
125th Coolest Coolest since: 2017 1979
1st Warmest Warmest to Date 2018
Sep 2014–Aug 2018
48-Month
57.3°F
(14.1°C)
55.4°F
(13.0°C)
1.9°F
(1.1°C)
123rd Coolest Coolest since: 2017 1980
2nd Warmest Warmest to Date 2019
Sep 2013–Aug 2018
60-Month
56.6°F
(13.7°C)
55.3°F
(12.9°C)
1.3°F
(0.8°C)
110th Coolest Coolest since: 2017 1906
14th Warmest Warmest since: 2013 2020
Ties: 1956, 1957, 2007

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, Average Temperature, published September 2022, retrieved on October 3, 2022 from https://www.ncdc.noaa.gov/cag/